An endoscope device includes a light source which generates visible light and excitation light, an imaging unit, an arithmetic unit which generates a visible light image signal according to a first signal and a fluorescence image signal according to a second signal and a third signal, and a switching unit. The imaging unit includes an excitation light, cut filter, a first image sensor, and a second image sensor. The excitation light cut filter transmits the visible light and fluorescence, and filters out the excitation light. A plurality of first photodiodes included in the first image sensor generate the first signal according to the visible light and a second signal according to the fluorescence. A plurality of second photodiodes included in the second image sensor generate the third signal according to the fluorescence transmitted through the plurality of first photodiodes.
